Base | Representation |
---|---|
bin | 10010111010101100… |
… | …010000001101100101 |
3 | 1221102120200010211020 |
4 | 102322230100031211 |
5 | 313044340011401 |
6 | 13155313201353 |
7 | 1316231265324 |
oct | 227254201545 |
9 | 57376603736 |
10 | 20312032101 |
11 | 8683681399 |
12 | 3b2a560259 |
13 | 1bb922920a |
14 | da990c0bb |
15 | 7dd354d36 |
hex | 4bab10365 |
20312032101 has 8 divisors (see below), whose sum is σ = 27097222944. Its totient is φ = 13534098000.
The previous prime is 20312032093. The next prime is 20312032127. The reversal of 20312032101 is 10123021302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20312032101 - 23 = 20312032093 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20312032141) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1807650 + ... + 1818851.
It is an arithmetic number, because the mean of its divisors is an integer number (3387152868).
Almost surely, 220312032101 is an apocalyptic number.
It is an amenable number.
20312032101 is a deficient number, since it is larger than the sum of its proper divisors (6785190843).
20312032101 is a wasteful number, since it uses less digits than its factorization.
20312032101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3628371.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 20312032101 its reverse (10123021302), we get a palindrome (30435053403).
The spelling of 20312032101 in words is "twenty billion, three hundred twelve million, thirty-two thousand, one hundred one".
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